AnkiApp lets you organize related cards within a deck by using tags, and then study them together.
To tag a card, from the Deck screen, open the menu, then select "Cards".
Then pick a card you'd like to tag. From the Card screen for that card, use the New button in the Tags section to give it a tag.
Go back to the Deck screen for this deck.
Use the settings button (the gear icon) in the bottom-left, next to the Review button, to open the review menu. Use the Tag button that appears, to select the tag you want to study.
All the cards in your review session will now have the chosen tag.